Pipe Major William MacLean explains in detail the pibroch scales used in both the Gesto and Nether Lorn Collections. He says that there is little difference between each form. He illustrates his talk by using as an example the ceòl mòr 'The Finger Lock', which he sings in canntaireachd form and plays on the practice chanter. He regards the canntaireachd system of learning ceòl mòr as much superior to learning from staff notation.